Arrange the Energy Scheming window so it appears on the left and the browser window on the right.
WARMUP 1C: deltaT
Open the Warmup 1 file in Energy
Scheming.
Arrange the Energy Scheming window so it appears on the left and the browser
window on the right.
1) Using the 100 sf south wall previously created, please answer
the following questions. You may wish to do Energy
Scheming runs to answer these questions. If you want to
compare graphic reports, print them out by selecting Print Energy
Performance Report from the File menu and configure the screen like
this:
2) The internal thermostat set point affects the delta T. To change
the thermostat, under the Define menu, select Schedules.
Under Allowable Temperature, select either Maximum or Minimum
setting. Then click in the temperature graph for the time of day you wish to change the thermostat
setting. Then drag the square up or down until you reach the desired temperature,
which is displayed on the left. Next, hold down the shift key (to maintain the same temperature) and
drag the cursor to other hours to change the temperature. Close this window when done.
The exterior color of a wall affects the wall's exterior surface
temperature and therfore the deltaT. To change the color of a wall:
Under the View menu, select Drawing/Takeoff. Select Elevations
from the drawing file icon. Double click on the south elevation icon.
Open the wall icon. Choose Select Wall Components.
On the lower left, see Ext. color. Change to Light or Dark, click ok,
and close the spec.
The direction a wall faces also affects the surface temperature of
the wall. To change the orientation of the wall: Under the View menu,
select Drawing/Takeoff layer. Select Elevations from the drawing file
icon. Double click on the south elevation icon. Open the wall
icon.
Select the circle of the compass which marks the orientation of the
wall, for example, the top circle is North. Close the spec.
Note that although you have changed the orientation of the wall, the
name and orientation of the elevation remains the same. You may edit
the name by selecting it or if you wish to change the orientation of
the elevation and all its specifications, select Review Drawing Info
from the View menu. The next screen allows you to make changes in the
orientation and scale of the elevation.
Close this building file without saving and start again by opening the Warmup 1 file.
3) Which of the following would reduce the heat gain through the wall
the most? (there can be more than one correct answer, but if any one
incorrect answer is checked, the question will be marked
incorrect)
Warm Up IntroductionGo to:
Warmup #1A: Wall Area
Warmup #1B: Wall R-Value
Return to: Topics Page